Bluetti B300K2 Expansion Battery

Power Expansion, Smarter & Stronger

The Bluetti B300K2 gives you dependable backup power when you need it most—whether you're upgrading your home energy storage or planning for total off-grid independence. With flexible compatibility and rugged build quality, it’s a future-proof solution for growing power demands.

Key Features & Benefits:

• 2,764.8Wh LiFePO4 Battery: Reliable energy storage with over 4,000 life cycles to 80%—built to last.

• Modular Power Expansion: Works with AC200L, AC200MAX, Apex300, AC300*, and AC500* systems.

• Cable Compatibility Notes:

  • Works with Apex300 using CA90 cable (included).

  • To connect with AC300, use P090A Cable (SKU: A-CBC-D6D24-UN-L80-0396) – sold separately.

  • To connect with AC500, use P090D to P150D Cable (SKU: A-PTC-NO-UN-P090D-P150D) – sold separately.

• Expandable Capacity: Chain multiple B300K2 units or mix with B230, B300, B300S models for up to 33,168Wh with AC500.

• USB-A Output Port: Use as a standalone power source to keep essentials like phones and fans running during any situation.

• Automotive-Grade Build: Square LiFePO₄ cells, advanced AI-BMS, aluminum housing, and cooling fan ensure performance and protection.

• Fast Charging: Recharge to 80% in just 45 minutes when paired with AC300/AC500 (with required cables).

• DIY-Friendly Setup: Modular design with clear cable options makes expansion easy and affordable.